The 49ers inactives for Week 4 against the Rams including just two players on the defensive side of the ball. The 49ers were without linebacker Patrick Willis (groin) and defensive back Nnamdi Asomugha (knee).

The offensive side of the ball will also be missing five players who did not dress, including wide receivers Marlon Moore and Chris Harper, fullback Owen Marecic, quarterback B.J. Daniels and guard Joe Looney.

The 49ers signed fullback Owen Marecic to a one-year deal, filling the roster spot vacated when the team put nose tackle Ian Williams (ankle) on injured reserve. Marecic, who's played in 24 career games, was released by the Browns in the preseason.